Our do you want to know how you can improve your setup?
Let me give you some hints that might help us to solve your problem as quickly as possible:
1. Make sure that you have read the and the .
2. Please give us some details of your setup (PC, type of camera and laser) and post a screenshot of the laser line, like
3. Do not hesitate to post your question in this forum!

Good luck!
EDIT: Dead link corrected
EDIT2: Dead link corrected